focus of attention vs limelight

focus of attention

limelight

noun
  • A type of stage lighting once used in theatres and music halls, producing a bright light by the use of incandescent quicklime. 

  • Attention, notice, a starring or central role, present fame. 

verb
  • to illuminate with limelight 

How often have the words focus of attention and limelight occurred in a corpus of books? (source: Google Ngram Viewer )